Friday's opening ceremony will need to fill a void without Brazil's most famous athlete. He had hip surgery several years ago and often walks with the help of a cane.

In his statement, Pele says: "Only God is more important than my health. In my life, I've had fractures, surgeries, pain, hospital stays, victories and defeats. And I've always respected those who admire me."

The cauldron was designed by American sculptor Anthony Howe, who told The Associated Press he was inspired by life in the tropics. There will be two cauldrons in Rio, one at the Maracana soccer stadium that is hosting the opening ceremony and another open to the public in downtown Rio.

The cauldron in central Rio is expected to be lit by a runner after the opening ceremony is finished, Howe said.